BS 1139-2.2:2009+A1:2015

• 91.220 Construction equipment

This section of BS 1139‑2 specifies requirements and test methods for aluminium couplers, steel putlog couplers and ancillary fittings outside the scope of BS EN 74, for use in scaffolds and falsework constructed with steel scaffold tubes conforming to BS EN 39:2001, Type 3 or Type 4, or aluminium scaffold tubes conforming to BS 1139‑1.2.

It is applicable to:

• aluminium right-angle, swivel and sleeve couplers;

• steel putlog couplers, expanding joint pins and reveal pins;

• steel putlogs, putlog adapters and toe-board clips; and

• aluminium or steel castors.

NOTE Steel right-angle, swivel, sleeve and parallel couplers are covered by BS EN 74‑1.